Module: Opener::BuildTools::Python

Defined in:
lib/opener/build-tools/python.rb

Overview

Module that contains various helper methods for dealing with Python, Pip and other Python tools.

Class Method Summary collapse

Class Method Details

.install_python_packages(requirements, directory) ⇒ Object

Installs a set of Python packages in a given directory based on a requirements file. If the directory is not empty this process is aborted.

Parameters:

  • file (String) —

    The requirements file to install.

  • directory (String) —

    The name of the directory to install the packages into.



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# File 'lib/opener/build-tools/python.rb', line 52

def install_python_packages(requirements, directory)
  return unless directory_contents(directory).empty?

  pip_install(requirements, directory)
end

.pip_install(file, target) ⇒ Object

Installs the packages in the requirements file in a specific directory.

Parameters:

  • file (String) —

    The requirements file to use.

  • target (String) —

    The target directory to install packages in.



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# File 'lib/opener/build-tools/python.rb', line 36

def pip_install(file, target)
  Rake::FileUtilsExt.sh(
    "pip install --requirement=#{file} --target=#{target} " \
      "--ignore-installed"
  )
end

.pip_version ⇒ String

Returns a String containing the Pip version in a RubyGems compatible format.

Returns:

  • (String) 


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# File 'lib/opener/build-tools/python.rb', line 26

def pip_version
  return `pip --version 2>&1`.match(/pip\s+([\d\.]+)/)[1].chomp('.')
end

.python_version ⇒ String

Returns a String containing the Python version. This only includes the numerical value, the prefix “Python ” is not included.

Returns:

  • (String) 


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# File 'lib/opener/build-tools/python.rb', line 16

def python_version
  return `python --version 2>&1`.split(/([\d\.]+)/)[1]
end